Experimenting with fake 3D projection
# TODO * base rendering (segments/curves) * make random spline course * svg * visualize * click to render segment at position (approx segment binary search) * stick to segment while driving * road bounding box * angle * future: splits? * hills * horizon adjustment * non-circular tracks ⇒ infinite road at end segment? * sprites * multi-road * real-world impl: two/three roads, disable one or two * multi-level * level-split segments * level-join segments